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Real-Time Detection System (RTDS)

Real-Time Intrusion Detection Systems (RTIDS) is a complex of devices and software applications that monitor network or system activities for malicious activities or policy violations and send reports to a management station.

ID systems are being developed in response to the increasing number of attacks on major sites and networks, including those of the Pentagon, the White House, NATO, and the U.S. Defense Department. The safeguarding of security is becoming increasingly difficult because the possible technologies of attack are becoming ever more sophisticated; at the same time, less technical ability is required for the novice attacker, because proven past methods are easily accessed through the Web.

Market Size


The perimeter intrusion detection systems market was valued at USD 9.52 billion in 2017 and is projected to reach USD 21.75 billion by 2023, at a CAGR of 15.2% during the forecast period. (Source: marketsandmarkets)

What value do Intrusion Detection systems provider to security professionals?

Intrusion detection systems monitor network traffic in order to detect when an intrusion is being carried out by unauthorized entities. IDSes do this by providing some or all of the following functions:

- Monitoring the operation of routers, firewalls, key management servers and files that are needed by other security controls aimed at detecting, preventing or recovering from cyber attacks.

- Providing administrators a way to tune, organize and understand relevant operating system audit trails and other logs that are often otherwise difficult to track or parse

- Providing a user-friendly interface so non-expert staff members can assist with managing system security

- Including an extensive attack signature database against which information from the system can be matched

- Recognizing and reporting when the IDS detects that data files have been altered

- Generating an alarm and notifying  that security has been breached

- Reacting to intruders by blocking them or blocking the server

What are the benefits of intrusion detection systems?

They can offer organizations a number of benefits, starting with the ability to identify security incidents. An IDS can be used to help analyze the quantity and types of attacks, and organizations can use this information to change their security systems or implement more effective controls. It can also help companies identify bugs or problems with their network device configurations. These metrics can then be used to assess future risks.

Moreover, it can also help the enterprises attain regulatory compliance and can also improve security response. Since IDS sensors can detect network hosts and devices, they can also be used to inspect data within the network packets, as well as identify the operating systems of services being used.

Which technologies are used in a system and what are the critical technology?

What IDS types are the most common?

IDS types range in scope from single computers to large networks.

The most common classifications are:

- Network intrusion detection systems (NIDS): it is a system that monitors these operating system files.

- Host-based intrusion detection systems (HIDS): it is a system that analyzes incoming network traffic.

Is there any other possibility to classify IDS by another approach?

Yes, by detection approach. The most well-known variants are:

-Signature-based detection: recognizing bad patterns, such as malware.

- Anomaly-based detection: detecting deviations from a model of "good" traffic, which often relies on machine learning.


There are also some IDS products that have the ability to respond to detected intrusions. Systems with response capabilities are typically referred to as an intrusion prevention system.

What is the function of an intrusion detection system on a network?

Intrusion detection is a passive technology; it detects and acknowledges a problem but interrupts the flow of network traffic. 

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